METHOD FOR CATALYTIC EPOXIDATION Russian patent published in 2017 - IPC C07D301/12 C07D303/08 C07D301/36 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing epoxide, which includes: feeding components to form a reaction mixture, wherein components comprise: olefin, having maximum solubility in water at 20 °C from 0.01 to 100 g/l; hydrogen peroxide; ions of alkaline-earth metal, containing metal ions formed from salts of alkali-earth metal and acid with pKa level equal to 15 or less; water-soluble manganese complex; buffer component; as well as water; and reaction of olefin with hydrogen peroxide in reaction mixture. Manganese complex includes one or more compounds, selected from a group consisting of: mononuclear complex formula (I): [LMnX_m]Y (I), binuclear complex of formula (II): [LMn(μ-X)_mMnL]Y_n (II) or polynuclear complex of formula (III): [L_nMn_n(μ-X)_m]Y_n (III), where Mn denotes a manganese atom; L or each of L independently is a polydentate ligand, each X is independently a coordination particle and each μ-X independently represents a bridge coordination particle, where Y is a non-coordinated counterion, and m assumes values from 1 to 4, and value of n ranges from 1 to 2.

EFFECT: increased number of turns of catalyst (TON) due to higher efficiency of using an oxidising agent.

15 cl, 1 dwg, 5 tbl, 3 ex